Vise



Oct. v w. HAAS 2,387,991

.VISE

Filed Jan. ll, 1943 Patented Oct. 30, 1945 VISE Walter Haas, Basel, Switzerland, assignor of one-half to Elektrizitats-Aktiengesellschaft Wdenswil, Zurich, Switzerland Application January 11, 1943, Serial No. 472,067 In Switzerland December 12, 1941 4 Claims.

panying drawing, in which:

Figure- 1 is a longitudinal section of the insertion vise in its state of use;

ligure 2 is a plan view of this insertion vise, an

Figure 3 is a cross section according to the line III- III in Figure 2.

The range reducing or auxiliary insertion vise shown in the Figures l, 2 and 3 has a rectangular supporting plate a which is provided with a longitudinal, rectangular opening a1. The plate a carries, on its lower side, two guiding bars b extending along the longitudinal edges of the opening al and forming, together with the plate a, guides for a sliding jaw holder c1 which is urged by a tension spring g, this jaw holder cooperating with a statiqnary .law holder c2 which is situated at the corresponding end of the opening a1.

Both of the jaw holders c1, c2 are provided on their opposite sides with dove-tail guides in each of which is slidably iitted a gripping jaw d. Each of the jaw holders c1, c2 carries an adjusting screw e screwed therein from below, these screws e having a peripheral groove into which engages a bent fork portion d1 of the gripping jaw d. Thus, each of the gripping jaws d canbe adjusted individually in the vertical direction with respect tothe bearing surface formed by the supporting plate. This arrangement has also the advantage, that by screwing out the adjusting screws e the gripping jaws d can be exchanged.

Figure 1 shows the insertion vise in its state of use. On this figure, it can be seen how the insertlon vise is applied to a standard vise s, which, owing to its size, would not be fit for the working of work-piece w. Owing thereto, the work-piece is laid on the supporting plate a and is clamped between 4the vertically adjustable gripping jaws d of the insertion vise by closing the standard vise s. By operating as just said, the insertion vise is `so inserted in the standard vise s, that the sta- `supporting plate forming a bearing surface for the workpiece and being provided with a longitudinally extending slot which is of less width than the width of the work-piece, two gripping jaws for holding the latter arranged in said supporting plate and extending through said slot, said gripping jaws being relatively movable rectilinearly toward and away from each other, and means for separately and individually adjusting each of said gripping jaws in the vertical direction with respect to said bearing surface whereby to adapt the gripping surface of each to the adjacent surface of the work-piece to be gripped.

2. A range reducing insertion vise according to claim 1, said gripping jaws being separately and individually removable from said supporting plate, whereby the jaws may be replaced or exchanged.

3. A range reducing insertion vise having a supporting plate forming a bearing surface for the work-piece and being provided with a longitudinally extending slot which is of less width than the width oi the work-piece, two jaw holders relatively movable rectilinearly toward and away from each other arranged in said supporting plate and extending through said slot, each of said jaw holders carrying a gripping jaw for holding the work-piece therebetween, whereby said gripping jaws are also relatively movable rectilinearly toward and away from each other, and means for separately and individually adjusting each of said gripping jaws in the vertical direction with respect to its jaw holder and said bearing surface whereby to adapt the gripping surface of each to the adjacent surface of the work-piece to be gripped, said gripping jaws being separately and individually removable from said holders, whereby the jaws may be replaced or exchanged.

4. A range reducing insertion vise having a supporting plate forming a, bearing surface for the work-piece and being provided with a longitudinally extending slot which is of less width than the width of the work-piece, two jaw holders arranged in said supporting plate, one of said holders being fixed at one end of said slot and the other being slidable rectilinearly toward and away from said xed holder, said jaw holders being severally provided on their interior opposing surfaces with a dove-tail guide, a gripping jaw mounted on each holder and having a dove-tail projection arranged in said guide, whereby said gripping jaws are relatively movable rectilinearly toward and away from each other, and means for separately and individually adjusting each of said gripping jaws in the vertical direction with respect to its Ijaw holder and said bearing surface whereby to Y WALTER muis. 

